NEW YORK, Aug 28 (Reuters) - Energy and bank shares weighed on the Dow and the S&P 500 on Monday as Tropical Storm Harvey crippled the U.S. energy hub in Texas.

Harvey, the most powerful hurricane to strike the southern U.S. state in more than 50 years when it came ashore on Friday, dumped more rain on Houston on Monday, and the flooding could worsen as engineers release water from overflowing reservoirs to keep it from jumping dams and surging uncontrollably.

U.S. crude futures fell 2.3 percent to $46.75 per barrel over concerns that the refinery shutdowns could trigger an increase in crude inventories. Gasoline prices, however, rose.